package com.hyts.dess.base.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.reactive.CorsWebFilter;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.util.pattern.PathPatternParser;

/**
 * Created by linziyu on 2019/2/9.
 *
 * 视图配置类
 */

@Configuration
public class WebMvcConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/login_page").setViewName("login");
        registry.addViewController("/").setViewName("index");
        registry.addViewController("/register_page").setViewName("register");
        registry.addViewController("/display_user_info").setViewName("displayuserinfo");
        registry.addViewController("/change_user_role").setViewName("change_user_role");
    }

    /**
     * 跨域cors请求操作
     * @return
     */
    @Bean
    public CorsWebFilter corsFilter() {
        org.springframework.web.cors.CorsConfiguration config = new org.springframework.web.
                cors.CorsConfiguration();
        // 允许cookies跨域
        config.setAllowCredentials(true);
        // #允许向该服务器提交请求的URI，*表示全部允许，在SpringMVC中，如果设成*，会自动转成当前请求头中的Origin
        config.addAllowedOrigin("*");
        // #允许访问的头信息,*表示全部
        config.addAllowedHeader("*");
        // 预检请求的缓存时间（秒），即在这个时间段里，对于相同的跨域请求不会再预检了
        config.setMaxAge(18000L);
        // 允许提交请求的方法类型，*表示全部允许
        config.addAllowedMethod("OPTIONS");
        config.addAllowedMethod("HEAD");
        config.addAllowedMethod("GET");
        config.addAllowedMethod("PUT");
        config.addAllowedMethod("POST");
        config.addAllowedMethod("DELETE");
        config.addAllowedMethod("PATCH");
        org.springframework.web.cors.reactive.UrlBasedCorsConfigurationSource source =
                new org.springframework.web.cors.reactive.UrlBasedCorsConfigurationSource
                        (new PathPatternParser());
        source.registerCorsConfiguration("/**", config);
        return new CorsWebFilter(source);
    }


}
